D-sub connectors

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D-sub connectors

(D-SUBminiature connectors) A family of plugs and sockets widely used in communications and on earlier PCs. For example, the analog VGA monitor interface uses a D-sub 15-pin plug and socket. Also called "DB connectors" and "D-subs," they come in 9, 15, 25, 37 and 50 pin varieties. The D-sub designation defines the physical structure of the connector, not the purpose of each line.

Technically Not Always DB
In the international DIN 41625 standard, the letters A through E define the number of pins and follow the D. Although called "DB connectors," the only true DB is the DB-25, because B means 25 pins (see illustration below).

DB-25
The female DB-25 was widely used in the past for the printer port on a PC (see printer cable). The male DB-25 was also the second serial port (COM2) on the PC when serial ports were popular. It is still widely used for RS-232 communications devices.

DB-9 (DE-9)
The male DB-9 connector (officially DE-9) was typically used for the first serial port on earlier PCs (COM1) as well as other communications devices. See serial port.

DB-15 (DA-15 and DE-15)
Two DB-15 connectors are widely used. The larger, two-row female DA-15 is the game port on a PC, and the smaller, three-row, female high-density DE-15 is the VGA port. See VGA and plugs and sockets.


References in periodicals archive ?
Limited Tenders are invited for Cnctr Dsub Male 9Pole Strt Pcb Mntg - 350.
Popular variations include 9 and 15-pin DSUB, RJ45, LC/SC/ST fiber optic, and standards like BNC, 1/8" mini, 1/4" TS, RCA, XLR plus much more.
The 26- and 28-pin M27 connector can be used for various industries, including pharmaceutical, replacing DB25 and DSUB style connectors where DB25 connectors are limited to 30V and low current.
Limited Tenders are invited for Screw Acc For Dsub 50 Pin Conn Male - 25.
Popular varieties include 9 and 15-pin DSUB, RJ45, LC/SC/ST fiber optic, and standards like BNC, 1/8" mini, 1/4" TS, RCA, XLR and much more.
Tenders are invited for Space Qualified Dsub And Combo Connectors
The widescreen is both PC and Mac compatible and comes with a variety of connectivity options, including Analog VGA, Dsub and DVI-D w/ HDCP inputs.
Supporting WXGA 1366x768, 1280x768, 1024x768, 800x600, 720x400, 640x480 via the RGB 15-pint dSub input and a 176 degree all angle viewing, this product is a perfect fit for the office or boardroom.
Contrast ratio of the Domino 20 is 2,000:1, which includes Faroudja DCDi(TM) technology and a range of inputs/outputs including composite video via RCA connectors, S-VHS via mini DIN 4 pin, RGBHV via Dsub 15, RGBS/YcrCbS via 4 RCA connectors and RS232 via Dsub 9 pin connector.
The cRIO-9425 contains an industry-standard 37-pin DSUB connector for a variety of low-cost connectivity options.